US7240772B2 - Embedding typed handbrake operating device - Google Patents

Embedding typed handbrake operating device Download PDF

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Publication number
US7240772B2
US7240772B2 US11/138,333 US13833305A US7240772B2 US 7240772 B2 US7240772 B2 US 7240772B2 US 13833305 A US13833305 A US 13833305A US 7240772 B2 US7240772 B2 US 7240772B2
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Prior art keywords
brake
handbrake
locking
locking bolt
seat
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US11/138,333
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US20060266594A1 (en
Inventor
Szu-Fang Tsai
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Tektro Technology Corp
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Tektro Technology Corp
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Assigned to TEKTRO TECHNOLOGY CORPORATION reassignment TEKTRO TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TSAI, SZU-FANG
Publication of US20060266594A1 publication Critical patent/US20060266594A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62LBRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K23/00Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
    • B62K23/02Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
    • B62K23/06Levers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/20Control lever and linkage systems
    • Y10T74/20396Hand operated
    • Y10T74/20402Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y10T74/20438Single rotatable lever [e.g., for bicycle brake or derailleur]

Abstract

An embedding typed handbrake operating device is disclosed herein, which mainly contains a positioning seat to which an operating lever is pin-joined. A stopping ring, a spring, and a locking seat are sequentially joined to the positioning seat through a locking bolt. The brake sleeve of a brake cable is threaded into the tubular body of the end section of the handlebar via a cable entrance hole and then into the locking seat. A brake wire is threaded through the operating lever, an axial through hole of the locking bolt, and into the brake sleeve connected to the locking seat, and finally to the handbrake assembly.

Description

BACKGROUND OF THE INVENTION

(a) Technical Field of the Invention

The present invention generally relates to bicycle handbrake operating device, and more particularly to a handbrake operating device embedded in the tubular body of the bicycle handlebar.

(b) Description of the Prior Art

As illustrated in FIG. 1, a conventional embedding typed handbrake operating device 1 is roughly of a ⊂ shape. The positioning seat 11 of the handbrake operating device 1 is fixedly installed in the tubular body of an end section 21 of a bicycle's handlebar 2 by a locking bolt 12. The handlebar 2 has a cable entrance hole 22 and a cable exit hole 23, allowing a brake cable 3 to pass through and connect to the handbrake operating device 1. When a rider pulls the operating lever 13 of the handbrake operating device 1, the brake wire 31 inside the brake cable 3 activates a handbrake assembly at the other end of the brake wire 31 to brake the bicycle. The conventional embedding type of handbrake operating device 1 has a number of disadvantages.

From a mechanics point of view, an end section 32 of the brake cable 3, in order to pass through the cable exit hole 23, has to suffer two turn. Such turns would introduce more friction to the brake wire 31 and divert a rider's pulling force exerted on the brake wire 31. In other words, the rider has to give a stronger grip in order to brake the bicycle, which is against the efficiency and effectiveness principles of the handbrake operating device.

From a design point of view, the exposure of the end section 32 of the brake cable 3 compromises the outlook of the bicycle. In practice, to conceal the exposed brake cable for avoiding it to get in the way of bicycle operation or for a better outlook, the end section 32 of the brake cable 3 is usually wrapped to the handlebar 2 by plastic or leather tapes, which actually does little help to beautify it.

From an assembly point of view, even though the brake cable 3 is very easy to be inserted into the cable entrance hole 22, getting it out from the cable exit hole 23 is a totally different story, as a user doesn't have direct control over the brake cable 3 inside the handlebar 2. It is therefore very difficult to install a conventional embedding typed of handbrake operating device 1.

Accordingly, there is a need for an embedding typed handbrake operating device of a better design that can obviate the foregoing shortcomings.

SUMMARY OF THE INVENTION

An embedding typed handbrake operating device is disclosed herein, which is installed in an end section of the handlebar. The handbrake operating device mainly contains a positioning seat to which an operating lever is pin-joined. A stopping ring, a spring, and a locking seat are sequentially joined to the positioning seat through a locking bolt. The brake sleeve of a brake cable is threaded into the tubular body of the end section via a cable entrance hole and then inserted into the locking seat. A brake wire is threaded through the operating lever, via an axial through hole of the locking bolt, and into the brake sleeve connected to the locking seat, and finally to the handbrake assembly. As such, the brake wire does not suffer any turn in order get outside of the handlebar just to connect to the operating lever 2. In addition, when the operating lever is pulled, the brake wire, without going through any turn, is able to apply the pulling force to the handbrake assembly directly to brake the bicycle effectively and efficiently.

The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.

Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view showing a conventional embedding typed handbrake operating device.

FIG. 2 is a perspective schematic view showing an embedding typed handbrake operating device according to an embodiment of the present invention.

FIG. 3 is a perspective explosion view showing various components of the handbrake operating device of FIG. 2.

FIG. 4 is an enlarged sectional viewing showing the handbrake operating device of FIG. 2.

FIG. 5 is another sectional viewing showing the handbrake operating device of FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

As illustrated in FIGS. 2˜5, a handbrake operating device 4 according to an embodiment of the present invention is fixedly installed in an end section 51 of a bicycle's handlebar 5, or on an end section of an auxiliary handlebar. The handbrake operating device 4 is roughly of a ⊂ shape. The positioning seat 41 of the handbrake operating device 4, via a locking bolt 42, joins a stopping ring 43, a spring 44 and a locking seat 45 sequentially in this order together. To install the handbrake operating device 4 to the handlebar 5, the joined stopping ring 43, spring 44 and locking seat 45 are inserted into the tubular body of the end section 51, leaving the positioning seat 41 at the outside of the end section 51. At an appropriate location on the handlebar 5, there is a cable entrance hole 52 allowing a brake cable 6 to enter the tubular body of the handlebar 5 and reach the handbrake operating device 4.

A brake wire 61 is threaded first through an end of the operating lever 46 of the handbrake operating device 4 adjacent to the locking bolt 42. The brake wire 61 is then threaded through the inside of the positioning seat 41, stopping ring 43, spring 44, and the inside of the locking seat 45, all via an axial through hole 421 of the locking bolt 42. The brake wire 61 then enters the brake sleeve 62 of the brake cable 6. The locking seat 45 has a cone opening 451 for accepting the brake sleeve 62 entered from the cable entrance hole 52 into an internal stopping tube 452. The brake sleeve 62 would be stuck by the stopping tube 452 and wouldn't be able to go further into the locking seat 45. The stopping tube 452 is aligned with the locking bolt 42 so that the brake wire 61 could be easily slid into the brake sleeve 62 of the brake cable 6 via the axial through hole 421 and reaches the handbrake assembly (not shown) installed on the wheel. As such, a rider of the bicycle is able to activate the handbrake assembly into braking the bicycle when the operating lever 46 is pulled.

When the locking bolt 42 is screwed into the locking seat 45, the locking seat 45 would be drawn toward and press on the stopping ring 43. The blades 453 at the front end (closer to the locking bolt 42) of the locking seat 45 are forced to expand outward so that the handbrake operating device 4 is fixedly locked to the inside of the end section 51 of the handlebar 5. Besides positioning and locking the handbrake operating device 4, as mentioned earlier, the locking bolt 42 has an axial through hole 421 allowing the brake wire 61 to slide freely through the locking bolt 42.

To install the handbrake operating device 4, the brake sleeve 62 of the brake cable 6 is first threaded through the cable entrance hole 52 of the handlebar 5 and extended out from the end section 51 of the handlebar 5. The brake sleeve 62 is then inserted into the stopping tube 452 via the cone opening 451 of the locking seat 45. The locking bolt 42 then threads the positioning seat 41, stopping ring 43, spring 44, and locking seat 45 sequentially in this order together. The foregoing joined assembly is then inserted into the tubular body of the end section 51 of the handlebar 5. The locking bolt 42 is further tightened to lock the joined assembly to the handlebar 5. The brake wire 61 is then threaded through the operating lever 46 and into the axial through hole 421 of the locking bolt 42 and then the brake sleeve 62 joined to the locking seat 45. Finally, to finish the installation, the operating lever 46 is pin-joined to the positioning seat 41, and the brake wire 61 is connected to the handbrake assembly.

It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.

Claims (1)

1. An embedding handbrake device fixedly installed in an end section of a bicycle's handlebar, said end section of said handlebar having a cable entrance hole allowing a brake sleeve of a brake cable to enter the tubular body of said handlebar, said handbrake operating device comprising an operating lever, a positioning seat, a locking bolt, a stopping ring, a spring, and a locking seat; wherein
said locking bolt has an axial through hole, said locking bolt is threaded through said positioning seat, said stopping ring, said spring, and said locking seat sequentially in this order;
said positioning seat, said stopping ring, said spring, and said locking seat joined by said locking bolt are fixedly installed in the tubular body of said end section of said handlebar;
said locking seat has a through tube aligned with said locking bolt for accepting and positioning said brake sleeve of said brake cable, said brake sleeve is inserted from said cable entrance hole into an end of said through tube opposite to said locking bolt;
said operating lever is pin-joined to said positioning seat;
a brake wire of said brake cable is threaded through an end of said operating lever, via said axial through hole of said locking bolt, into said brake sleeve of said brake cable, and connected to a handbrake assembly of said bicycle so that, when a rider pulls said operating lever, said brake wire activates said handbrake assembly to brake said bicycle.
US11/138,333 2005-05-27 2005-05-27 Embedding typed handbrake operating device Active 2025-09-01 US7240772B2 (en)

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US11/138,333 US7240772B2 (en) 2005-05-27 2005-05-27 Embedding typed handbrake operating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/138,333 US7240772B2 (en) 2005-05-27 2005-05-27 Embedding typed handbrake operating device

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US20060266594A1 US20060266594A1 (en) 2006-11-30
US7240772B2 true US7240772B2 (en) 2007-07-10

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060145446A1 (en) * 2004-12-10 2006-07-06 John Schmider Method to conceal bicycle control cables within the handlebars, stem and frame
US20060169094A1 (en) * 2005-01-20 2006-08-03 Shimano Inc. Bicycle handlebar
US20090114057A1 (en) * 2007-11-06 2009-05-07 Shimano Inc. Device to mount control lever to bicycle
US20090200119A1 (en) * 2008-02-11 2009-08-13 Szu-Fang Tsai Quick-release device of a bicycle brake cable
US20110031079A1 (en) * 2009-08-05 2011-02-10 Shimano Inc. Brake control apparatus and control lever therefor
US20130076000A1 (en) * 2010-07-09 2013-03-28 Savy Man Cycle Headsets
US20140360303A1 (en) * 2013-06-10 2014-12-11 Campagnolo S.R.L. Bicycle handlebar assembly with integrated oleo-hydraulic controls
US20150291247A1 (en) * 2014-04-09 2015-10-15 Shimano Inc. Bicycle operating system, take-up device, and bicycle operating apparatus
US9268354B1 (en) 2012-04-19 2016-02-23 Evolve Technologies, Llc Lever assemblies and methods
USD774429S1 (en) * 2015-12-03 2016-12-20 Helio Ascari Bicycle brake lever

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20030044A1 (en) * 2003-02-20 2004-08-21 Formula Srl Device for the control of brakes in cycles and similar
EP2030884B1 (en) * 2007-08-30 2018-03-28 Compositech, Inc. Aerobar assembly
US9869340B2 (en) * 2009-09-01 2018-01-16 Sram, Llc Control cable actuation device
DE102009054380B4 (en) * 2009-11-24 2012-07-26 Jochen Klieber Bicycle cable holder
US8453534B2 (en) * 2011-03-24 2013-06-04 Szu-Fang Tsai Braking handlebar for bicycle
DE102011007643A1 (en) * 2011-04-19 2012-10-25 Gustav Magenwirth Gmbh & Co. Kg Encoder for hydraulic actuator of disk brake of bicycle, has clamping unit that is formed at internal cross-section of handlebar by inner wedging
DE102011078480A1 (en) * 2011-06-30 2013-01-03 Gustav Magenwirth Gmbh & Co. Kg Transmitter for hydraulic actuating element e.g. rim brake, of bicycle, has fixing element comprising clamping part that is shaped with respect to cross-section of handlebar, where clamping part is equipped in handlebar by internal clamping
EP2562070B1 (en) 2011-08-26 2015-02-18 Campagnolo S.r.l. Actuation device of a bar-end bicycle gearshift
US9630677B2 (en) * 2012-06-15 2017-04-25 Sram, Llc Brake control apparatus
US10227104B2 (en) * 2015-12-14 2019-03-12 Sram, Llc Bicycle control device mounting assembly
US10167041B2 (en) * 2016-11-01 2019-01-01 Shimano Inc. Bicycle operating device
US10583890B2 (en) * 2017-02-21 2020-03-10 Shimano Inc. Bar-end device assembly for tube member of bicycle
KR101996801B1 (en) * 2017-03-11 2019-10-01 박희범 Sequential braking lever for bicycle

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US4930798A (en) * 1987-11-13 1990-06-05 Maeda Industries, Ltd. Bicycle handle assembly
US5050444A (en) * 1989-08-28 1991-09-24 Maeda Industries, Ltd. Bicycle brake lever assembly
US5285696A (en) * 1992-09-21 1994-02-15 Answer Products, Inc. Bar end assembly attachable to the steerer bars of bicycle handlebar systems
US5678455A (en) * 1996-02-15 1997-10-21 Shimano, Inc. Bar-end shifting device
US6941834B2 (en) * 2001-03-28 2005-09-13 Shimano Inc. Bicycle component operating device
US7000936B2 (en) * 2003-03-26 2006-02-21 John Schmider Bicycle having internally routed control cables

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US4930798A (en) * 1987-11-13 1990-06-05 Maeda Industries, Ltd. Bicycle handle assembly
US5050444A (en) * 1989-08-28 1991-09-24 Maeda Industries, Ltd. Bicycle brake lever assembly
US5285696A (en) * 1992-09-21 1994-02-15 Answer Products, Inc. Bar end assembly attachable to the steerer bars of bicycle handlebar systems
US5678455A (en) * 1996-02-15 1997-10-21 Shimano, Inc. Bar-end shifting device
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US7000936B2 (en) * 2003-03-26 2006-02-21 John Schmider Bicycle having internally routed control cables

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891687B2 (en) * 2004-12-10 2011-02-22 Magna Marque International Inc. Method to conceal bicycle control cables within the handlebars, stem and frame
US20060145446A1 (en) * 2004-12-10 2006-07-06 John Schmider Method to conceal bicycle control cables within the handlebars, stem and frame
US7487694B2 (en) * 2005-01-20 2009-02-10 Shimano Inc. Bicycle handlebar
US20060169094A1 (en) * 2005-01-20 2006-08-03 Shimano Inc. Bicycle handlebar
US20090114057A1 (en) * 2007-11-06 2009-05-07 Shimano Inc. Device to mount control lever to bicycle
US8056439B2 (en) 2007-11-06 2011-11-15 Shimano Inc. Device to mount control lever to bicycle
EP2058218A2 (en) 2007-11-06 2009-05-13 Shimano Inc. Device to mount control lever to bicycle
US20090200119A1 (en) * 2008-02-11 2009-08-13 Szu-Fang Tsai Quick-release device of a bicycle brake cable
US8006810B2 (en) * 2008-02-11 2011-08-30 Tektro Technology Corporation Quick-release device of a bicycle brake cable
US8863912B2 (en) 2009-08-05 2014-10-21 Shimano Inc. Brake control apparatus and control lever therefor
US20110031079A1 (en) * 2009-08-05 2011-02-10 Shimano Inc. Brake control apparatus and control lever therefor
US9187146B2 (en) * 2010-07-09 2015-11-17 Savvy Design Holdings Limited Cycle headsets
US9789926B2 (en) 2010-07-09 2017-10-17 Savvy Design Holdings Limited Cycle headsets
US20130076000A1 (en) * 2010-07-09 2013-03-28 Savy Man Cycle Headsets
US9268354B1 (en) 2012-04-19 2016-02-23 Evolve Technologies, Llc Lever assemblies and methods
US20140360303A1 (en) * 2013-06-10 2014-12-11 Campagnolo S.R.L. Bicycle handlebar assembly with integrated oleo-hydraulic controls
US10689058B2 (en) * 2013-06-10 2020-06-23 Campagnolo S.R.L. Bicycle handlebar assembly with integrated oleo-hydraulic controls
US20150291247A1 (en) * 2014-04-09 2015-10-15 Shimano Inc. Bicycle operating system, take-up device, and bicycle operating apparatus
US9937977B2 (en) * 2014-04-09 2018-04-10 Shimano Inc. Bicycle operating system, take-up device, and bicycle operating apparatus
USD774429S1 (en) * 2015-12-03 2016-12-20 Helio Ascari Bicycle brake lever

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